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5253-821 — BELT,FLAT

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

5253-821: BELT,FLAT.

The BELT,FLAT is a the manufacturer industrial component. Key specifications include material: RUBBER CHLOROPRENE CLASS CR OVERALL, usage_design: TRANSMITTING POWER, nominal_width: 0.500 INCHES IN, performance_type: STANDARD CAPACITY, style_designator: REGULAR FLAT TYPE, nominal_thickness: 0.035 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 3030-01-116-3745, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
5253-821
NSN: 3030-01-116-3745
FSC: 3030 — Belting, Drive Belts, Fan Belts, and Accessories
CAGE: 05869 — RAYTHEON COMPANY DIV RMD STRATEGIC (USA)
SPECIFICATIONS
materialRUBBER CHLOROPRENE CLASS CR OVERALL
ply_quantity1
usage_designTRANSMITTING POWER
nominal_width0.500 INCHES IN
performance_typeSTANDARD CAPACITY
style_designatorREGULAR FLAT TYPE
nominal_thickness0.035 INCHES IN
surface_conditionSMOOTH OVERALL
strengthening_featurePOLYESTER CORD
environmental_protectionABRASION RESISTANT AND OIL RESISTANT
nominal_inside_circumference20.000 INCHES IN
NSN3030-01-116-3745
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available BELT,FLAT TITLE COMPONENT PN 5253-821 MFR BELT,FLAT
KEY FEATURES
•
NOMINAL INSIDE CIRCUMFERENCE: 20.000 INCHES IN
•
STRENGTHENING FEATURE: POLYESTER CORD
•
USAGE DESIGN: TRANSMITTING POWER
•
STYLE DESIGNATOR: REGULAR FLAT TYPE
•
SURFACE CONDITION: SMOOTH OVERALL
•
PLY QUANTITY: 1
•
ENVIRONMENTAL PROTECTION: ABRASION RESISTANT AND OIL RESISTANT
•
NOMINAL WIDTH: 0.500 INCHES IN
TECHNICAL CHARACTERISTICS
NOMINAL INSIDE CIRCUMFERENCE20.000 INCHES IN
STRENGTHENING FEATUREPOLYESTER CORD
USAGE DESIGNTRANSMITTING POWER
STYLE DESIGNATORREGULAR FLAT TYPE
SURFACE CONDITIONSMOOTH OVERALL
PLY QUANTITY1
ENVIRONMENTAL PROTECTIONABRASION RESISTANT AND OIL RESISTANT
NOMINAL WIDTH0.500 INCHES IN
MATERIALRUBBER CHLOROPRENE CLASS CR OVERALL
MATERIALPLASTIC POLYESTER BODY
SUBSTITUTES & CROSS-REFERENCES 3
135-0056-000Reference document
Same NSN cross-reference
Reference document — Secondary reference
135-0056-001Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
1400-1/2X20 IN.LGReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5253-821?
5253-821 is a BELT,FLAT.
What parts can replace 5253-821?
There are 3 known substitutes for 5253-821: 135-0056-000, 135-0056-001, 1400-1/2X20 IN.LG. Substitute compatibility should be verified for your specific system.
What is the NSN for 5253-821?
5253-821 is cataloged in the U.S. Government catalog under NSN 3030-01-116-3745. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.